Opening blocked sites in KSA

Many websites and Internet services are blocked in KSA. For example, free VoIP services, such as Viber and Tango, are blocked by software provided by the Company Narus. The main reason behind this blockage is to protect national mobile phone carriers from potential competition by forcing people to use the extremely expensive mobile phone carriers to make all their international phone calls. Some Wikipedia articles, blogging platforms and Google Translate service are also banned in KSA.